condition	mean	min	max
0 h after light	8.431865	8.35103	8.5127
4 h after light	8.629125	6.21135	11.0469
8 h after light	1.9136549999999999	1.73938	2.08793
4 h after dark	6.849595	6.1873	7.51189
8 h after dark	12.099599999999999	11.9764	12.2228
12 h after dark	21.7252	16.9722	26.4782